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微咸水入渗水量对土壤水盐运移特征的影响（Effect on Characteristics of Soil Water and Salt Movement about Saline Water Infiltration with Different Infiltration Amount）
微咸水 含水率 含盐量 脱盐效率
2010/12/28
通过室内3g/L微咸水的入渗试验，分析了不同微咸水入渗水量对土壤剖面含水率、含盐量、脱盐效率和阳离子分布的影响。结果表明，利用3g/L的微咸水进行垂直一维积水入渗，入渗水量较小时，基质势是水分运动的主要动力，入渗量继续增大时，重力势逐渐取代基质势成为水分运动的主要动力；采用3g/L的微咸水入渗，可以使上层土壤脱盐，但使湿润锋处的含盐量急剧增加且达到最大值；湿润锋处含盐量与入渗水量符合指数函数...
Mapping spatial variability of soil properties and yield by using geostatic method
precision agriculture geostatistics maps spatial variability
2014/2/26
The Czech University of Agriculture in Prague (CUA) Farm at L醤y started with precision farming technology several years ago. In the first step the yield and nutrients content were monitored. For prec...
Response to Defra Consultation on Integrated Code of Good Agricultural Practice to Protect Water, Soil and Air
Response to Defra Consultation on Integrated Code Good Agricultural Practice Protect Water, Soil and Air
2014/2/20
Response to Defra Consultation on Integrated Code of Good Agricultural Practice to Protect Water, Soil and Air。